From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/sound/core/sound.c | 22 +++++-----------------
1 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/kernel/sound/core/sound.c b/kernel/sound/core/sound.c
index b30f027..b75f78f 100644
--- a/kernel/sound/core/sound.c
+++ b/kernel/sound/core/sound.c
@@ -1,22 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Advanced Linux Sound Architecture
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/init.h>
@@ -134,8 +119,11 @@
if (dev == SNDRV_MINOR_CONTROL) {
/* /dev/aloadC? */
int card = SNDRV_MINOR_CARD(minor);
- if (snd_cards[card] == NULL)
+ struct snd_card *ref = snd_card_ref(card);
+ if (!ref)
snd_request_card(card);
+ else
+ snd_card_unref(ref);
} else if (dev == SNDRV_MINOR_GLOBAL) {
/* /dev/aloadSEQ */
snd_request_other(minor);
--
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